V
VPolyAI vs Retell AI
Pricing, features, platforms and who each one suits — side by side.
P
Choose PolyAI if…
- you're in its core audience: enterprise contact centers, customer service leaders
R
Choose Retell AI if…
- you're in its core audience: customer service teams, healthcare and insurance providers
Side by side
Feature PolyAI Retell AI
Pricing modelContact for pricingFree trial
Starting price——
Free plan
Free trial
API
Open source
PlatformsWeb, APIWeb, API
CompanyPolyAI LtdRetell AI
Full feature lists
P PolyAI
- Audio-native Dialog-RSN-1 voice model with sub-300ms latency
- Dialog Studio for no-code to full-code agent building
- Voice, SMS, WhatsApp, web chat and email channels
- Guardrails, PII redaction and human-in-the-loop controls
- Test calls, simulated conversations and A/B tests
- Pre-built connectors plus any API or MCP server
- Bring your own carrier over SIP at no charge
- Data residency in US, UK, EU and APAC
R Retell AI
- Call transfer to human agents
- Appointment booking during calls
- Knowledge base answers for agents
- IVR navigation by pressing keypad options
- Batch outbound calling with branded caller ID
- Post-call analysis and AI quality assurance
- Choice of about 50 LLMs and several TTS providers
- Chat agents for web, in-app and SMS
What you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
PolyAI
Dialog-RSN-1 API2¢ per connected minute
PlatformCustom
Retell AI
Pay as You Go$0.07–$0.31/min (voice), $0.002+/message (chat)
EnterpriseCustom
Price changes we've recorded
We re-read each pricing page every month and log what changed.
PolyAI
- Nov 8, 2026Pricing model: Contact for pricing → Free trial
Retell AI
No changes since we started tracking.
Strengths and limitations
PolyAI
- Published API price of 2¢ per connected minute, billed per second
- $100 free credit for new sign-ups for a limited time
- SOC 2, ISO 27001, PCI DSS and GDPR compliance
- No minimums on platform billing
- Platform pricing requires a sales quote
- API excludes telephony and orchestration
- API limited to 2 concurrent calls until a card is added
Retell AI
- $10 in free credits and 20 free concurrent calls
- Usage-based billing to the nearest second; failed calls are not billed
- Choice of many LLM and TTS providers
- Lists HIPAA, SOC 2 Type II, GDPR and ISO 27001 compliance
- Per-minute cost depends on model choices and add-ons, which makes it harder to estimate
- Concurrency beyond 20 calls costs $8 per concurrent call per month
- Phone numbers ($2/mo) and SMS ($20/mo) are billed as separate subscriptions
More comparisons
Other options to consider
VV
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Developer platform to build, test and deploy voice AI agents for phone calls
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BB
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S
SS
Contact
Z
ZZ
Free trial
I
IAI customer agent that resolves support, sales and ecommerce conversations
From $49.50/mo
I
From $49.50/mo
I
AI customer agent that resolves support, sales and ecommerce conversations
Customer SupportAPI
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GG
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Facts from each vendor's public pages, prices checked Nov 8, 2026. Editorial policy